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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package time_test
import (
"os"
"syscall"
"testing"
. "time"
)
func TestSleep(t *testing.T) {
const delay = int64(100e6)
go func() {
Sleep(delay / 2)
syscall.Kill(os.Getpid(), syscall.SIGCHLD)
}()
start := Nanoseconds()
Sleep(delay)
duration := Nanoseconds() - start
if duration < delay {
t.Fatalf("Sleep(%d) slept for only %d ns", delay, duration)
}
}
func TestAfter(t *testing.T) {
const delay = int64(100e6)
start := Nanoseconds()
end := <-After(delay)
if duration := Nanoseconds() - start; duration < delay {
t.Fatalf("After(%d) slept for only %d ns", delay, duration)
}
if min := start + delay; end < min {
t.Fatalf("After(%d) expect >= %d, got %d", delay, min, end)
}
}
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